54983781408 has 96 divisors (see below), whose sum is σ = 156829962240. Its totient is φ = 16803175680.

The previous prime is 54983781403. The next prime is 54983781431. The reversal of 54983781408 is 80418738945.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (54983781403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 429660 + ... + 542747.

It is an arithmetic number, because the mean of its divisors is an integer number (1633645440).

Almost surely, 2^54983781408 is an apocalyptic number.

It is an amenable number.

54983781408 is an abundant number, since it is smaller than the sum of its proper divisors (101846180832).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54983781408 is a wasteful number, since it uses less digits than its factorization.

54983781408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 972470 (or 972462 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 57.

The spelling of 54983781408 in words is "fifty-four billion, nine hundred eighty-three million, seven hundred eighty-one thousand, four hundred eight".